<template>
    <div>
        <h1>{{id ? '编辑' : '新建'}}物品</h1>
        <el-form label-width="120px" @submit.native.prevent="save">
<!--            <el-form-item label="上级分类">-->
<!--                <el-select v-model="model.parent">-->
<!--                    <el-option v-for="item in parentOption"-->
<!--                               :key="item._id"-->
<!--                               :label="item.name"-->
<!--                               :value="item._id">-->
<!--                    </el-option>-->
<!--                </el-select>-->
<!--            </el-form-item>-->
            <el-form-item label="名称">
                <el-input v-model="model.name"></el-input>
            </el-form-item>
            <el-form-item label="图标">
                <el-upload
                        class="avatar-uploader"
                        :action="uploadUrl"
                        :headers="getAuthHeaders()"
                        :show-file-list="false"
                        :on-success="afterUpload">
                    <img v-if="model.icon" :src="model.icon" class="avatar">
                    <i v-else class="el-icon-plus avatar-uploader-icon"></i>
                </el-upload>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" native-type="submit">保存</el-button>
            </el-form-item>
        </el-form>
    </div>
</template>

<script>
    export default {
        name: "ItemEdit",
        props: {
          id: {
              type: String
          }
        },
        data() {
            return {
                model: {}
            }
        },
        created() {
            this.id && this.fetch();
        },
        methods: {
            async save() {
                if (this.id) {
                    await this.$http.put(`rest/items/${this.id}`, this.model);
                } else {
                    await this.$http.post('rest/items', this.model);
                }
                this.$router.push('/items/list')
                this.$message.success('保存成功!')
            },
            async fetch() {
                const res = await this.$http.get(`rest/items/${this.id}`)
                this.model = res.data
            },
            afterUpload(res) {
                // vue语法显式赋值变量
                this.$set(this.model, 'icon', res.url)
            }
        }
    }
</script>

<style scoped>
    .avatar-uploader .el-upload {
        border: 1px dashed #d9d9d9;
        border-radius: 6px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
    }
    .avatar-uploader .el-upload:hover {
        border-color: #409EFF;
    }
    .avatar-uploader-icon {
        font-size: 28px;
        color: #8c939d;
        width: 178px;
        height: 178px;
        line-height: 178px;
        text-align: center;
    }
    .avatar {
        width: 178px;
        height: 178px;
        display: block;
    }
</style>
